Following the fix for https://bugs.webkit.org/show_bug.cgi?id=180402, the test at http/wpt/web-animations/interfaces/AnimationEffectTiming/endDelay.html has a flaky failure: -PASS onfinish event is not fired duration endDelay +FAIL onfinish event is not fired duration endDelay assert_unreached: onfinish event should not be fired Reached unreachable code
This test does not exist anymore.